i found another way you can get out of metzone, by using the mine. I renamed all my map files (mine-four.DMAP,mine-four2.DMAP,mine-three.DMAP,mine-three2.DMAP and all the ones that look like that.) and i crenamed map four map five, then renamed map one map four,then map three map one,map two map three and map "five" map two. After that i found an exit which brought me to TC, then dced me but when i logged back on, still in TC.
Heres an example of how i renamed my maps:
Map Four->Two
Map One->Four
Map Three->One
Map Two->Three
By the way you have to be around middle of the mine if you want to make it work.